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The Changes of Pro- and Anti-inflammatory Cytokines in Both Serum and Gastrocnemius Muscle of Mice after 2-hour Postischemic Reperfusion Injury

Kim Shin Young 1

1한양대학교

Accredited

ABSTRACT

This study aimed to investigate the inflammatory changes and their main indicators according to thetime-period of postischemic reperfusion injury confirmed by analyzing changes of both pro-inflammatory andanti-inflammatory cytokines in the skeletal muscle and serum. By using 12-week-old male ICR strain mice were grouped into sham control and 8 different time-periods ofreperfusion groups (0, 0.5, 1, 2, 4, 8, 16, 24 hours). Left common iliac artery of each mice in the reperfusion groupwas devascularized by a vascular clamp for 2 hours. Once anesthesia was applied to the experimental animals,blood serum was obtained from right heart atrium on the difference time-period of reperfusion (0-, 0.5-, 1-, 2-, 4-,8-hour, respectively). Then, tissue fluid was collected in calf muscles (gastrocnemius muscle) after the mice weresacrificed by cervical dislocation. By using these serum and tissue fluids, enzyme-linked immunosorbent assay(ELISA) was used to analyze both pro-inflammatory cytokines (Eotaxin, IFNγ, IL-1α, IL-1β, IL-2, IL-3, IL-5, IL-6, MCP-1, MDC, MIP-1α, RANTES, TARC, TCA-3) and anti-inflammatory cytokines (IL-4, IL-10). Consequently,there were significant differences of pro-inflammatory cytokines levels in the skeletal muscle of 0-hour reperfusion group (p⁄.05) and those in the serum of 0-, 1-, 2-, 4-, 8-, 16-hour reperfusion groups (p⁄.05). In the serum of 4-hour reperfusion group, the presence of anti-iflammatory cytokines was significant from othergroups (p⁄.05). By the comparison with the control group, furthermore, pro-inflammatory cytokines in theserum of 2-, 4-, 16-hour reperfusion group and anti-inflammatory cytokines in the serum of 4-hour reperfusiongroup were considerably different (p⁄.05). To sum up, changes of cytokine levels according to the time-period of reperfusion were considerably differentin the serum rather than the tissue fluids from the skeletal muscle. In particular, IL-6 and MCP-1 in the serumshowed higher density in 4- and 16-hour reperfusion groups so that they could be considered as the mainindicator of pro-inflammatory cytokines.

Citation status

* References for papers published after 2023 are currently being built.